1. On February 20, 1677, the town of Dover, New Hampshire made an agreement with local Native American tribes to end hostilities and establish peace. This agreement marked a turning point in the relationship between colonists and Native Americans in the region.

2. In 1792, the New Hampshire General Court passed a law granting Dartmouth College its charter. This landmark decision established the principle of academic freedom and protected the college from political interference.

3. On February 20, 1885, the New Hampshire State House was destroyed by fire. Despite the loss of the historic building, the state government was able to quickly rebuild a new State House.

4. In 1931, New Hampshire's Mount Monadnock was designated a National Natural Landmark by the National Park Service. Mount Monadnock is known for its unique geological features and exceptional hiking trails.

5. On February 20, 1962, astronaut Alan Shepard, a native of New Hampshire, became the first American to travel into space. Shepard's historic flight aboard the Mercury capsule Freedom 7 was a major milestone in the American space program.